Home / 857,882.86-1,285,987.50-408,482.98

Finding the Fourth Proportional to 857,882.86, 1,285,987.50 and 408,482.98

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Solution

The fourth proportional to 857,882.86, 1,285,987.50 and 408,482.98 is: 612,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,882.86 : 1,285,987.50 = 408,482.98 : x
  2. Step 2: Convert to fraction form
    857,882.86/1,285,987.50 = 408,482.98/x
  3. Step 3: Cross multiply
    857,882.86x = 1,285,987.50 × 408,482.98
  4. Step 4: Simplify right side
    857,882.86x = 525,304,006,242.75
  5. Step 5: Solve for x
    x = 525,304,006,242.75/857,882.86
  6. Step 6: Final answer
    x = 612,326.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.